1. The publication and research ethics of CHNR strictly follow the ICMJE guidelines (http://www.icmje.org) which state that "authorship credit should be based on all of the following: 1) substantial contributions to conception and design of the study, or acquisition of data, or analysis and interpretation of data; 2) drafting the article or advising it critically for important intellectual content; and 3) final approval of the version to be published". All other contributors should be listed as acknowledgments.